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US3141503A
Expired / Lapsed
US
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Plugging of permeable earth formations
Assignee: ExxonMobil Oil Corp
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Filing: 1960-02-05
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Granted: 1964-07-21
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Expires: 1980-02-05
Abstract
No abstract record available.
Inventors
- 👤 Stein Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:14
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A PROCESS FOR THE DRILLING OF A WELL BOREHOLE INTO THE EARTH WHEREIN CUTTINGS ARE REMOVED FROM SAID WELL BOREHOLE DURING DRILLING BY PUMPING A GAS UNDER PRESSURE TO THE BOTTOM OF SAID WELL BOREHOLE AND THENCE UPWARDLY THROUGH SAID WELL BOREHOLE TO THE SURFACE OF THE EARTH AND WATER WITHIN A PERMEABLE FORMATION FLOWS INTO SAID WELL BOREHOLE FROM SAID FORMATION AND INTERFERES WITH THE REMOVAL OF SAID CUTTINGS FROM SAID WELL BOREHOLE, THE PROCESS FOR REDUCING THE FLOW OF SAID WATER INTO SAID WELL BOREHOLE FROM SAID FORMATION COMPRISING THE STEPS OF: (A) INTRODUCING INTO SAID FORMATION AN ESTER OF TITANIUM, (B) MAINTAINING SAID ESTER OF TITANIUM WITHIN SAID FORMATION FOR A PERIOD WHICH IS AT LEAST ONE-HALF HOUR, AND (C) FORMING BY REACTION OF SAID ESTER OF TITANIUM WITH SAID WATER WITHIN SAID FORMATION AN AMORPHOUS, GELATINOUS PRECIPITATE WITHIN SAID FORMATION WHICH RESTRICTS FLOW OF WATER FROM SAID FORMATION INTO SAID WELL BOREHOLE.
Claim 2
Dependent Claim
157 words
IN A PROCESS FOR THE DRILLING OF A WELL BOREHOLE INTO THE EARTH WHEREIN CUTTINGS ARE REMOVED FROM SAID WELL BOREHOLE DURING DRILLING BY PUMPING A GAS UNDER PRESSURE TO THE BOTTOM OF SAID WELL BOREHOLE AND THENCE UPWARDLY THROUGH SAID WELL BOREHOLE TO THE SURFACE OF THE EARTH AND WATER WITHIN A PERMEABLE FORMATION FLOWS INTO SAID WELL BOREHOLE FROM SAID FORMATION AND INTERFERES WITH THE REMOVAL OF SAID CUTTINGS FROM SAID WELL BOREHOLE, THE PROCESS FOR REDUCING THE FLOW OF SAID WATER INTO SAID WELL BOREHOLE FROM SAID FORMATION COMPRISING THE STEPS OF: (A) INTRODUCING INTO SAID FORMATION AN ESTER OF TITANIUM, (B) MAINTAINING SAID ESTER OF TITANIUM WITHIN SAID FORMATION FOR A PERIOD WHICH IS AT LEAST ONE-HALF HOUR, AND (C) FORMING BY REACTION OF SAID ESTER OF TITANIUM WITH SAID WATER WITHIN SAID FORMATION AN AMORPHOUS, GELATINOUS PRECIPITATE WITHIN SAID FORMATION WHICH RESTRICTS FLOW OF WATER FROM SAID FORMATION INTO SAID WELL BOREHOLE.
References Cited (Backward Citations)
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US2270006A
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US2579414A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |